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J/AJ/125/478        HST imaging of brightest cluster galaxies   (Laine+, 2003)

Hubble space telescope imaging of brightest cluster galaxies. Laine S., Van Der Marel R.P., Lauer T.R., Postman M., O'Dea C.P., Owen F.N. <Astron. J., 125, 478-505 (2003)> =2003AJ....125..478L
ADC_Keywords: Clusters, galaxy ; Galaxies, photometry Keywords: elliptical and lenticular, cD - galaxies: evolution - galaxies: nuclei - galaxies: photometry - galaxies: structure Abstract: We used the Hubble Space Telescope Wide Field Planetary Camera 2 to obtain Iband images of the centers of 81 brightest cluster galaxies (BCGs), drawn from a volume-limited sample of nearby BCGs. The images show a rich variety of morphological features, including multiple or double nuclei, dust, stellar disks, point-source nuclei, and central surface brightness depressions. Highresolution surface brightness profiles could be inferred for 60 galaxies. Of those, 88% have well-resolved cores. Description: All images were taken with the Wide Field Planetary Camera 2 (WFPC2) instrument on board the HST between 2000 July 3 and 2001 July 26. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 111 81 Sample of Abell Cluster BCG Galaxies Cluster table4.dat 75 81 Properties of BCGs and Their Host Clusters
See also: VII/4 : Abell and Zwicky Clusters of Galaxies (Abell+ 1974) VII/110 : Rich Clusters of Galaxies (Abell+ 1989) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Cluster Cluster name 12- 22 A11 --- OName Other name 24- 25 I2 h RAh Right ascension of the BCG center (J2000.0) (1) 27- 28 I2 min RAm Right ascension of the BCG center (J2000.0) (1) 30- 34 F5.2 s RAs Right ascension of the BCG center (J2000.0) (1) 36 A1 --- DE- Declination sign of the BCG center (J2000.0) (1) 37- 38 I2 deg DEd Declination of the BCG center (J2000.0) (1) 40- 41 I2 arcmin DEm Declination of the BCG center (J2000.0) (1) 43- 46 F4.1 arcsec DEs Declination of the BCG center (J2000.0) (1) 48- 52 I5 km/s cz Heliocentric velocity cz for the BCG 54- 59 F6.2 Mpc Dist Angular diameter distance of the BCG 61- 65 F5.2 mag Rmet R-band metric magnitude in an aperture of 10h-1kpc 67- 72 F6.2 mag VMAG Total absolute V-band magnitude 74- 78 F5.2 [solLum] logLV Total V-band luminosity 80 A1 --- F4 [YSN] Profiles are shown in Fig.4 (2) 82- 87 F6.1 --- North Orientation on the sky of the images that are shown in Fig. 1. 89- 93 F5.3 mag E(B-V) Foreground reddening E(BV) 95-111 A17 --- Notes Identifies any special features seen in the HST images (3)
Note (1): Galaxies identified as [LVL2003] JHHMMSS.ss+DDMMSS.s in Simbad Note (2): Profiles code as follows: Y = an accurate surface brightness profile could be determined and fitted with the Nuker formulation S = we were able to derive a surface brightness profile that was not accurate enough for fitting N = it was impossible to derive any reasonable surface brightness profile. Note (3): Notes as follows: Sp = spiral galaxy morphology; MN = multiple nuclei (see Sect. 3.1) Double = double nucleus (see Sect. 3.1) Dust = dust absorption features (see Sect. 3.2) Disk = the circumnuclear morphology has a high ellipticity, suggesting the possible presence of an edge-on nuclear disk (see Sect. 3.3) Nuc = bright point-like nucleus, most likely associated with an AGN (see Sect. 4.2) Hollow = depression in the surface brightness in the very nucleus (see Sect. 4.4).
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Cluster Cluster name 14- 19 A6 --- BM Bautz-Morgan cluster morphology classification 22- 28 F7.3 mag RMAG Absolute R-band metric magnitude of the BCG inside an aperture of 10kpc radius 30- 34 F5.3 --- alpha Parameter α, which measures the logarithmic slope of the metric luminosity as a function of radius, determined at a physical radius of 10kpc 36- 41 F6.3 --- delta Residual δ between the observed metric luminosity and that predicted by the BCG standard-candle relation between metric luminosity and alpha 43- 47 F5.3 mag B-R B-R color index at the metric radius after correcting for Galactic extinction and Kdimming 49- 51 I3 --- Rich Richness Abell richness count 53- 57 F5.3 Mpc Sep Projected separation of the BCG from the cluster center 59- 62 I4 km/s VelDiff Difference between the line of sight velocity of the BCG and the systemic velocity of the cluster 64- 69 F6.1 km/s sigma ?=- Available velocity dispersion for clusters that have measured redshifts for at least 20 member galaxies 71- 75 F5.3 10+37W LX ?=- X-ray luminosities from the compilation of Jones & Forman, 1999, Cat. J/ApJ/511/65 (1)
Note (1): All data are based on Postman & Lauer (1995, Cat. J/ApJ/440/28), unless otherwise noted.
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 10-Jan-2008
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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